Package nictools :: Module SP_FirstDerivatives :: Class DerivVar

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Class DerivVar

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Numerical variable with automatic derivatives of first order

Instance Methods

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__init__(self, value, index=0, order=1)

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list

__getitem__(self, order)
Returns: a list of all derivatives of the given order

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__repr__(self)

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__str__(self)

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__coerce__(self, other)

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__cmp__(self, other)

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__neg__(self)

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__pos__(self)

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__abs__(self)

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__nonzero__(self)

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__add__(self, other)

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__radd__(self, other)

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__sub__(self, other)

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__rsub__(self, other)

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__mul__(self, other)

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__rmul__(self, other)

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__truediv__(self, other)

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__div__(self, other)

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__floordiv__(self, other)

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__rdiv__(self, other)

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__pow__(self, other, z=None)

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__rpow__(self, other)

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exp(self)

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log(self)

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log10(self)

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sqrt(self)

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sign(self)

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sin(self)

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cos(self)

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tan(self)

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sinh(self)

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cosh(self)

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tanh(self)

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arcsin(self)

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arccos(self)

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arctan(self)

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arctan2(self, other)

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gamma(self)

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Method Details

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init(self, value, index=0, order=1)
(Constructor)

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Parameters:

value (number) - the numerical value of the variable
index (int) - the variable index, which serves to distinguish between variables and as an index for the derivative lists. Each explicitly created instance of DerivVar must have a unique index.
order (int) - the derivative order, must be zero or one

Raises:

ValueError - if order < 0 or order > 1

getitem(self, order)
(Indexing operator)

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Parameters:

order (int) - derivative order

Returns: list

a list of all derivatives of the given order

Raises:

ValueError - if order < 0 or order > 1

Class DerivVar

__init__(self, value, index=0, order=1) (Constructor)

__getitem__(self, order) (Indexing operator)

init(self, value, index=0, order=1)
(Constructor)

getitem(self, order)
(Indexing operator)